Beginner Exercism • javascript

Series

Challenge Overview

Given a string of digits, output all the contiguous substrings of length `n` in that string in the order that they appear.

Instructions

Given a string of digits, output all the contiguous substrings of length n in that string in the order that they appear.

Our Solution

export class Series {
  constructor(series) {
    if (!series) throw new Error('series cannot be empty');
    this.series = series;
  }
  slices(sliceLength) {
    if (sliceLength < 0) throw new Error('slice length cannot be negative');
    if (sliceLength === 0) throw new Error('slice length cannot be zero');
    if (sliceLength > this.series.length) throw new Error('slice length cannot be greater than series length');
    
    return Array.from({ length: this.series.length - sliceLength + 1 }, (_, i) => 
      this.series.slice(i, i + sliceLength)
    );
  }
}

Source: Exercism javascript/series

💡 View Solution

export class Series {
  constructor(series) {
    if (!series) throw new Error('series cannot be empty');
    this.series = series;
  }
  slices(sliceLength) {
    if (sliceLength < 0) throw new Error('slice length cannot be negative');
    if (sliceLength === 0) throw new Error('slice length cannot be zero');
    if (sliceLength > this.series.length) throw new Error('slice length cannot be greater than series length');
    
    return Array.from({ length: this.series.length - sliceLength + 1 }, (_, i) => 
      this.series.slice(i, i + sliceLength)
    );
  }
}